package com.yin.myproject.netty.quickstart;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

import java.util.Date;


/**
 * @author Eason
 * @create 2017-12-17 0:12
 **/
@io.netty.channel.ChannelHandler.Sharable
public class NettyTimerServerHandler extends ChannelHandlerAdapter {

    private int counter;

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
//        ByteBuf buffer = (ByteBuf) msg;
//        byte[] req = new byte[buffer.readableBytes()];
//        buffer.readBytes(req);
//        String body = new String(req, "UTF-8").substring(0, req.length - System.getProperty("line.separator").length());
        String body = (String) msg;
        System.out.println("The time server receive order : " + body + " ;the counter is : " + ++counter);
        String currentTime = "QUERY TIME ORDER".equalsIgnoreCase(body) ? new Date(System.currentTimeMillis()).toString() : "BAD ORDER";
        currentTime = currentTime + System.getProperty("line.separator");
        ByteBuf resq = Unpooled.copiedBuffer(currentTime.getBytes());
        ctx.writeAndFlush(resq);
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        ctx.flush();
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
    }
}
